UNKNOWN NVD
CVE-2026-98227
In the Linux kernel, the following vulnerability has been resolved: memstick: ms_block: destroy io_queue workqueue on removal msb_init_disk() creates the per-
In the Linux kernel, the following vulnerability has been resolved:
memstick: ms_block: destroy io_queue workqueue on removal
msb_init_disk() creates the per-card ordered workqueue msb->io_queue with
alloc_ordered_workqueue(). It is torn down with destroy_workqueue() only
on the init error path; msb_remove() never destroys it. msb_stop() merely
flushes the queue, and neither msb_data_clear() nor put_disk() free it. As
a result every card insert/remove cycle leaks the workqueue and its
kworker, exhausting kernel memory over repeated cycles.
Destroy the workqueue in msb_remove() after the disk has been removed and
the queue drained.
References
- https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544
- https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c
- https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6
- https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c
- https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b
This unknown severity vulnerability was published on 2026-10-06 via NVD.
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